package com.company;

public class fu {
    public static void main(String[] args){
    new zi01();
    }
}
class fu01{
    int a =10;
    public fu01(){System.out.println("父类方法");}
    public fu01(int a){System.out.println("父类方法");}
    public fu01(String a){System.out.println("父类方法");}
}
class zi01 extends fu01{

    public zi01(){

        System.out.println("子类1的方法");}
}
class zi02{}